It isn't massive by any means, but I play a nostalgic Zelda-esque old MORPG called TWO, or Terra World Online. The link's in my profile. It is some pretty fun stuff, and a unique levelling system - it is entirely random as to whether or not you gain a level whilst performing an activity, no EXP to it. There's only XP to getting more HP, which makes sense.

=) You should play. My name on there is CcK, but I don't get on alllll that often, and not for a very very great deal of time when I do.

I have played Rappelz and Gunz(it's sort of a first person shooter rpg). There is a free rpg coming,don't remember the name, but it's supposed to be for adults with gore and blood ;p. I think it's from Akklaim but I'm not sure. I think Ash knows what it is.

My only other game is Urban Dead since other mmo(free of course) have failed me. Almost quit UD months ago as well.
I'll try 2 Moons when I feel I have the extra hours as it's not another Korean point & click fest. Though sure looks like it, can't say I trust Acclaim either. Slayer likes to use keys and pk so hound him to play like he hounded me! ;)